The Sumner Redstone saga will get the tell-all treatment by Christine Peters — the girlfriend who ended the Viacom/CBS owner’s 52-year marriage.

Peters, the glamorous ex-wife of movie producer Jon Peters and former business partner of Paramount boss Bob Evans, is working with New York literary agent David Vigliano on finding a publisher for her memoirs.

“It’s about my years in Hollywood and working with some of the most crazy, genius, dysfunctional producers in the business,” the mother of two told me.

“As a woman in a man’s world, it’s been an interesting ride and a dangerous one.”

Peters, who produced “How To Lose a Guy in 10 Days,” was Redstone’s girlfriend in 1999 when a photograph was published of the couple getting off a plane.

Though Sumner’s wife Phyllis had turned a blind eye to her husband’s dalliances, the public photo reportedly persuaded her to file for divorce.

Peters remained friends with Redstone, now 93, even after he married Paula Fortunato, and was a regular visitor to his LA mansion when that marriage ended.

“Christine was an eyewitness to Sumner’s decline, and how people took advantage of him,” one insider told me.

“She also saw firsthand the family feuds with his son and daughter.”

Sumner is still estranged from son Brent, though he has reconciled with daughter Shari, who is increasingly in control of Viacom, with ex-CEO Philippe Dauman on his way out.

Correction:

In an earlier version of this article we stated that Manuela Herzer was hooking up with Redstone after his divorce from Paula Fortunato. In fact, according to Herzer’s sworn testimony, her romantic relationship with Redstone ended five years before his divorce from Fortunato.